Yes, But you would have to cook them more carefully then with the regular liners
Yes, a large potato is good for baking. To reduce baking time by a lot, it's best to cut the potato in half or quarters.
Endothermic because you have to put heat into the potato to bake it.
Endothermic because you have to put heat into the potato to bake it.
Russet potatoes are best for creating baked potatoes
No Not At All
Baking powder has cornstarch in it so possibly there is a problem with starches in general. You would have to find out if this is the case or it is only potato's.
any baking potato, not too moist, not too fresh (but not growing either)
Usually skin on, with the potato crusting on the tender (opposite) side. The dish is cooked potato side down and served potato side up.
Anything black inside a potato at any time is rot.
Yes, baking a potato would be considered a chemical change. Typically, anything that involves heat, such as in cooking, is a chemical change due to molecules being chemically altered.
zero
It could be referring to either the oven rack, or a special rack made with spears on which to spear the potato for baking.